A new full-endoscopic technique for cervical posterior foraminotomy in the treatment of lateral disc herniations using 6.9-mm endoscopes: prospective 2-year results of 87 patients.

Anterior cervical decompression and fusion (ACDF) is the standard procedure for operation of cervical disc herniations with radicular arm pain. Mobility-preserving posterior foraminotomy is the most common alternative in the case of a lateral localization of the pathology. Despite good clinical results, problems may arise due to traumatization of the access. Endoscopic techniques are considered standard in many areas, since they may offer advantages in surgical technique and rehabilitation. These days, all disc herniations of the lumbar spine can be operated in a full-endoscopic technique. The objective of this prospective study was to examine the technical possibilities of full-endoscopic posterior foraminotomy in the treatment of cervical lateral disc herniations. 87 patients were followed for 2 years. The results show that 87.4% no longer have arm pain and 9.2% have only occasional pain. The decompression results were equal to those of conventional procedures. The operation-related traumatization was reduced. The recurrence rate was 3.4%. No serious surgical complications occurred. The recorded results show that the full-endoscopic posterior foraminotomy is a sufficient and safe supplement and alternative to conventional procedures when the indication criteria are fulfilled. At the same time, it offers the advantages of a minimally invasive intervention.     

Technical Notes and Clinical Outcomes of Full-Endoscopic Interbody Fusion Via Transforaminal Approach for Hard Disc Herniations in Thoracolumbar Junction

Objective

Obtaining sufficient decompression and solid fusion and avoiding approach-related injuries simultaneously are still challenging for the treatment of hard disc herniation in thoracolumbar junction. A combined full-endoscopic decompression and interbody fusion via a transforaminal approach was used to achieve this goal. The purpose of this study was to introduce the technical notes and clinical outcomes of this novel technique.

Methods

Twenty segments of hard disc herniations in the thoracolumbar junction of 14 patients treated with full-endoscopic interbody fusion via the transforaminal approach between January 2018 and September 2021 were analyzed. The patients were an average age of 43.3 years. Full-endoscopic interbody fusion and discectomy via the transforaminal approach were performed under local anesthesia, followed by percutaneous pedicle screw system fixation under general anesthesia. Imaging, including magnetic resonance imaging (MRI), computed tomography (CT), and X-ray, was carried out. MRI was performed on the second day and 3 months postoperatively. CT was performed on the second day, 6 months, and 1 year (as needed) postoperatively. Back and radicular pain, neurological function, and thoracic spine function were scored using a visual analog scale, the Nurick scale, and modified Japanese Orthopaedic Association (mJOA) scale, and the Oswestry disability index at 1 week, 3 months, 6 months, and 1 year postoperatively.

Results

All the operations were successfully completed, and no intraoperative conversion of the surgical methods occurred. Postoperative thoracolumbar junction MRI and CT examinations of all the patients revealed a sufficiently decompressed spinal cord or cauda equina, without any residual compression. At the 1-year follow-up, all the surgical segments were fused. Back and radicular pain was relieved in all the patients, and neurological function was restored. The average recovery rate of the mJOA was 72.5%, including seven excellent, five good, and two fair cases. Although dural tears occurred in two cases during the operation, no cerebrospinal fluid leakage or pseudomeningocele occurred during follow-up. No other surgical complications were noted.

Conclusions

A combined full-endoscopic decompression and interbody fusion via a transforaminal approach can achieve complete spinal canal decompression and solid interbody fusion with fewer approach-related injuries. It is a safe and effective minimally invasive spine surgery for treating hard disc herniation in the thoracolumbar junction.     

Full-endoscopic anterior decompression versus conventional anterior decompression and fusion in cervical disc herniations

Anterior cervical decompression and fusion (ACDF) is the standard for cervical discectomies. With the full-endoscopic anterior cervical discectomy (FACD) a minimally invasive procedure is available. The objective of this prospective, randomised, controlled study was to compare the results of FACD with those of ACDF in mediolateral soft disc herniations. A total of 103 patients with ACDF or FACD were followed up for two years. In addition to general parameters specific measuring instruments were used. Postoperatively 85.9% of the patients no longer had arm pain, and 10.1% had occasional pain. There were no significant clinical differences between the decompression with or without fusion. The full-endoscopic technique afforded advantages in operation technique, rehabilitation and soft tissue injury. The recorded results show that FACD is a sufficient and safe alternative to conventional procedures when the indication criteria are fulfilled. At the same time, it offers the advantages of a minimally invasive intervention.     

Speculum lumbar extraforaminal microdiscectomy

BACKGROUND CONTEXT: Public interest, monetary pressures and improving diagnostic techniques have placed an increasing emphasis on minimalism in lumbar disc excision. Current techniques include microlumbar discectomy and minimally invasive spinal surgery. Both are good techniques but may be painful, require a hospital stay and/or are not widely used because of difficulty acquiring the necessary skills. The author therefore developed a less invasive microscopic technique that may be performed on a consistent outpatient basis with easily acquired skills. PURPOSE: The purpose of this study was to describe a variant of minimally invasive lumbar disc excision, while assessing the effects on a small group of patients. STUDY DESIGN: The treatment protocol was a prospective community hospital-based case study designed to evaluate a less invasive method of excising herniated lumbar discs residing in the canal, foraminal or far lateral space. PATIENT SAMPLE: This study is comprised of 50 patients with all anatomic forms of lumbar disc herniations, inside or outside the canal, at all levels except the lumbosacral joint. OUTCOME MEASURES: Clinical results were measured by return to work time, the criteria of MacNab and by Prolo et al.'s economic and functional criteria. METHODS: Selection criteria included adult patients with intractable low back and leg pain, plus an imaging study revealing a lumbar disc herniation consistent with the patient's clinical presentation. Mean patient age was 48 years. The male:female ratio was approximately 2:1. All patients failed at least 3 weeks of conservative therapy. Herniations occurred from the L2-3 space through L4-5, with 30 herniations being within and 20 outside the spinal canal. Both contained and extruded/sequestered herniations were treated. Excluded from the study were patients with herniations inside the spinal canal at the L5-S1 level. Surgical approach was by microscopic speculum transforaminal route for discs residing both within and outside the lumbar canal. RESULTS: The initial 50 consecutive patients had successful technical operations performed on an outpatient basis by this less invasive technique. By the criteria of MacNab (Table 3), 84% (42 of 50) had an excellent or good result, returning to work at a mean time of 3.5 weeks. Per Prolo et al.'s economic scale, 72% were disabled at levels I and II before surgery. Postoperatively, 92% had improved to levels IV and V. Similarly, on his functional scale, 94% functioned at levels I and II before surgery, whereas 88% achieved levels IV and V after surgery. Eighty percent required no pain medications 1 week after surgery. The only complication was an L3 minor nerve root injury as it exited the L3-4 foramen. CONCLUSION: The author has described a minimally invasive technique for excising herniated discs that is applicable to all types of lumbar herniations, except for those residing in the canal at L5-S1. Clinical outcomes are comparable to those of other forms of discectomy.     

Minimally invasive transforaminal,thoracic microscopic discectomy: technical report and preliminary results and complications

Background contextSurgical decompression of thoracic disc herniations is technically challenging because retraction of the thecal sac in this area must be avoided. Standard open thoracic discectomy procedures require fairly extensive soft tissue dissection and vertebral resection to provide safe decompression of the spinal cord.PurposeTo describe our experience using a minimally invasive, transforaminal thoracic discectomy (MITTD) technique for the treatment of thoracic disc herniation.Study designTechnical report and preliminary results and complications.MethodsTwelve patients undergoing MITTD were evaluated preoperatively and postoperatively at 1-, 3-, and 6-month intervals with neurologic examination, and were graded using the American Spinal Injury Association (ASIA) impairment scale and a pain visual analog scale (VAS). Thoracic instability and bony fusion were assessed clinically and radiographically with plain radiographs and computed tomography (CT) scans. Surgical time, blood loss, complications, and hospital length of stay were recorded.ResultsTwelve patients (seven men and five women) underwent MITTD. The median surgical time was 128 (80 to 185) minutes, the median estimated blood loss was 100 (30 to 250) mL, and the median hospital stay was 2 (1 to 4) nights. All discs were successfully removed, and a CT or magnetic resonance imaging confirmed adequate cord decompression in all cases. All patients reported easing of neurologic symptoms and improved walking ability. The median VAS scores improved from 4.5 to 2 for back pain. The ASIA score improved from D to E in the two patients who suffered from motor weakness. Preoperative sensory deficit was reduced in three of the five patients. Patients who suffered from sexual and urinary disturbances did not report improvement. Serious systemic or local complications and neurologic deterioration were not reported.ConclusionsThe transforaminal approach enabled sufficient access to the midline of the spinal canal without extensive resection of the facet joint or the adjacent pedicle. Because most of the osseous and ligamentous structures were preserved, additional instrumentation was not required to prevent postoperative instability. Our early results suggested that minimally invasive thoracic discectomy by transforaminal microscopic technique is a valuable choice in the management of thoracic disc herniation.     

全内镜下腰椎纤维环缝合术的技术要点及临床疗效分析

目的 :介绍全内镜下腰椎纤维环缝合术的技术要点,分析全内镜下腰椎间盘摘除、纤维环缝合术的临床疗效。方法:纳入2018年1月至2018年11月采用全内镜下腰椎间盘摘除、纤维环缝合术治疗的50例非包含型腰椎间盘突出症患者,根据病变节段选择经椎间孔入路全内镜下单针缝合术或经椎板间隙入路双针缝合术。术后第2天、3个月分别复查腰椎MRI及CT以评估突出椎间盘组织摘除的彻底性及神经减压的充分性。分别于术后第2天及3、6、12个月采用视觉模拟评分(visual analogue scale,VAS,100分制)评估患者疼痛症状缓解情况,于术后3、6、12个月采用Oswestry功能障碍指数(Oswestry Disability Index,ODI)评价患者腰椎功能恢复情况,术后1年随访时采用Macnab评定标准评估腰椎功能,记录神经根功能(感觉、肌力及反射)恢复状况。结果:所有手术顺利完成,采用经椎间孔入路27例(包括L_3,48例、L_4,519例),经椎板间隙入路23例(包括L_4,511例、L₅S_1<...     

Zero通道下MISS TLIF联合Zina钉治疗腰椎间盘突出症

目的探讨Zero通道下微创经椎间孔入路行椎管减压、椎间融合(MISS TLIF)联合Zina钉治疗腰椎间盘突出症的临床疗效。方法对55例腰椎间盘突出症患者采用后路切口经多裂肌肉间隙入路、经Zero通道下行MISS TLIF联合Zina钉技术治疗。其中单侧减压49例,双侧减压5例,单侧入路双侧减压1例。采用Nakai分级评定临床疗效。结果患者均获得随访,时间6~18个月。患者腰痛和下肢放射性麻木等临床症状均有效缓解,临床疗效按Nakai分级评定:优25例,良29例,可1例,优良率为98.18%。结论 Zero通道下MISS TLIF联合Zina钉治疗腰椎间盘突出症能显著缓解患者症状,改善功能,近期疗效好。     

微创单侧固定与开放双侧固定治疗单间隙腰椎管狭窄症的疗效比效

目的比较微创单侧入路双侧减压固定与开放双侧减压固定治疗单间隙腰椎管狭窄症的疗效。方法将33例单间隙腰椎管狭窄症患者随机分为两组:微创单侧组采用通道下单侧椎间孔双侧减压单侧固定治疗(16例),开放双侧组采用双侧椎间孔双侧减压双侧固定治疗(17例)。比较两组手术时间、出血量、住院时间以及术后椎间高度指数、ODI评分、VAS评分。结果微创单侧组的手术时间、出血量、住院时间均少于开放双侧组,差异均有统计学意义(P0.05)。两组患者均获得随访,时间12~52个月。术后ODI及VAS评分两组均较术前明显改善(P0.001),两组之间比较差异无统计学意义(P0.05)。两组术后1年椎间高度指数与术后比较差异均无统计学意义(P0.05)。结论对于单间隙腰椎管狭窄症,微创单侧入路双侧减压单侧固定具有与开放双侧减压固定相似的临床及影像学疗效;微创单侧固定创伤小,手术及住院时间短。     

微创经椎间孔腰椎间融合术治疗高位腰椎间盘突出症

目的评价微创经椎间孔入路腰椎间融合术（MIS-TLIF）治疗高位腰椎间盘突出症的中短期临床疗效。方法对自2009-01—2012—12收治的高位腰椎间盘突出症22例行MIS—TLIF术,根据患者症状、体征及影像学资料,切除单侧减压、对侧潜行减压或两侧开窗减压,并行自体及同种异体骨椎间植骨、椎间融合器融合、经皮椎弓根钉内固定。结果所有患者获平均（12±3）个月的随访,出现椎间植骨不融合1例,椎间植骨融合时间为（7．2±1．3）个月。术后下肢放射痛VAS评分及腰背痛ODI评分与术前比较,差异有统计学意义（P〈0．05）。改良MacNab标准评价优良率为86．4％。结论MIS-TLIF治疗高位腰椎间盘突出症是安全、有效的方法。     

Diagnosis and operative treatment of intraforaminal and extraforaminal nerve root compression.

The clinical, radiologic, and operative findings, and clinical results in 26 cases of foraminal nerve root involvement, each treated by variable operative procedures for an existing pathologic condition, were studied. These 26 cases consisted of 8 intraforaminal or extraforaminal lumbar disc herniations and 18 foraminal nerve root entrapments. The cases with an extreme lateral lumbar disc herniation underwent lateral fenestration or osteoplastic hemilaminectomy without concomitant spinal fusion, and showed excellent operative results. A sufficient selective decompression was achieved with a good clinical result in the cases of lumbar spondylosis without preoperative spinal instability, by lateral fenestration or osteoplastic hemilaminectomy. This result suggests that the selective decompression procedure is recommended for cases with reliable preoperative diagnoses. When an intraspinal lesion makes it difficult to diagnose coexisting foraminal nerve root involvement, decompression of the nerve root canal, approaching from medial to lateral, is recommended. The fusion operation should be performed in cases undergoing even a unilateral total facetectomy, regardless of the patient's old age. A correct preoperative diagnosis is crucial in order to obtain satisfactory operative results.     

Endoscopic Transforaminal Lumbar Discectomy and Reconfiguration: A Postero-lateral Approach into the Spinal Canal

Background

In the past, minimally invasive procedures (chemonucleolysis, laser, automated percutaneous discectomy, percutaneous manual nucleotomy, arthroscopy) have been largely confined to intradiscal work. This study represents cases of working channel, transforaminal spinal endoscopy performed using an endoscope which, because of its small size and flexibility, can bend up to 90 degrees (depending on the guiding cannula), and pass completely through the foramen into the spinal canal (truly transforaminal, as opposed to just going through part of the foramen and into the disc), to directly remove free fragments and reconfigure disc, relieving root and dural displacement at all lumbar levels.

Methods

The records of 533 patients who had outpatient, minimally invasive operations performed over a 6-year period (ending in 1995) by this author were analyzed. Of these, 110 had small scope transforaminal procedures, forming the basis of this study.

Results

An independent observer followed the 110 patients who had endoscopic transforaminal procedures for 2 or more years. Using MacNab’s criteria, the success rate (excellent or good) was 95% in the 75 patients with disc presenting lateral to the dura—“lateral presenting,”—and 83% in the 35 patients not presenting disc for direct removal—“non-lateral presenting” (i.e., dura in the pathway)—making an overall success rate of 91%. One patient who developed discitis was the only complication.

Conclusion

Guideable endoscopes small enough to pass completely through the foramen allow percutaneous surgery to include non-contained disc herniations and even some migrated free fragments, depending on the location. The percutaneous transforaminal endoscopic technique can be an effective, safe approach for disc removal through the foramen, especially in cases where the disc presents itself for direct removal.     

Lumbar disc herniation in patients with developmental spinal stenosis

Lumbar spinal stenosis and lumbar disc herniation are usually regarded as two pathogenetically different conditions, but in the literature lumbar disc herniation in patients with developmental spinal stenosis has been rarely documented. In a clinical retrospective study, 42 lumbar disc herniations with developmental spinal stenosis were reported and analyzed. Discectomy was performed after laminotomy. The patients were followed-up for an average of 4.4 years (range 2–7 years). The preoperative symptoms disappeared completely in 28 patients, in 13 patients some degree of backache remained although their nerve root pain had been relieved, and in 1 patient intermittent claudication reappeared after 6 years resolution of their preoperative pain. We conclude that when developmental spinal stenosis is combined with disc herniation, discectomy through laminotomy rather than laminectomy is usually sufficient for decompression.     

Minimally invasive surgery for the lumbar spine

Minimally invasive spine surgery is a rapidly developing field that has the potential to decrease surgical morbidity and improve recovery compared to traditional spinal approaches. Minimally invasive approaches have been developed for all regions of the spine, but have been best documented for degenerative conditions of the lumbar spine. Lumbar decompression and lumbar interbody fusion are two of the most well-studied minimally invasive surgical approaches. This article will review both the rationale and technique for minimally invasive lumbar decompression and for a minimally invasive transforaminal lumbar interbody fusion (TLIF).     

Minimally invasive approach for the treatment of lateral lumbar disc herniations. Technique and results.

OBJECTIVE: This paper aims to demonstrate the feasibility and efficacy of a minimal invasive approach by using a muscle dilator system for the treatment of lateral lumbar disc herniations. METHODS: A retrospective analysis of 38 cases with lateral lumbar disc herniations that were treated the METRx-System was performed. Patients were assessed preoperatively and postoperatively with the visual analogue scale (VAS) for leg pain. Follow up ranged from 6 to 24 months. RESULTS: No intraoperative complications were observed. Operation time and intraoperative blood loss were minimized. In 37 cases VAS scores were significantly lower after the procedure. A single patient had to be reoperated due to insufficient removal of the herniated disc material. CONCLUSION: The reported minimal invasive technique is a safe and efficient alternative to conventional methods for the treatment of lateral lumbar disc herniations.     

内窥镜下不同入路治疗L_5S_1椎间盘突出症

目的 探讨局麻下经皮后外斜入路与椎板间孔入路内窥镜手术治疗L_5S_1椎间盘突出症的临床疗效.方法 自2003年6月至2008年10月,对57例L_5S_1椎间盘突出症患者应用内窥镜下髓核摘除术进行治疗.男32例,女25例;年龄17～79岁,平均42岁.内窥镜手术入路分别采用后外斜入路与椎板间孔入路.应用Oswestry功能障碍指数对患者手术前、后腰椎功能状况进行评价,分析不同入路的治疗结果、并发症、二次开放手术等情况.结果 57例患者均获得随访,最长5年4个月,最短12个月,平均22.4个月.采用后外斜入路22例,椎板间孔入路35例,其中各有1例患者接受二次手术,各有1例术后出现感染.后外斜入路突出的部位更靠外侧.椎板间孔入路不考虑髂棘的高低,突出部位为中央型和旁中央型.后外斜入路组手术前、后平均Oswestry功能障碍指数分别为74.36,13.91(P<0.001),椎板间孔入路为77.45,12.56(P<0.001),术前和术后两者之间的差异无统计学意义.按照MacNab标准,末次随访时手术疗效后外斜入路优良率为86%.椎板间孔入路优良率为89%.结论 两种入路各有不同的适应证,手术过程明显不同,但只要选择恰当,均能达到很好的临床疗效.     

The translaminar approach to canalicular and cranio-dorsolateral lumbar disc herniations

Summary. Summary.   Introduction: The interlaminar approach is the standard procedure for most disc herniations in lumbar spine surgery. However, in cranially extruded disc herniations including canalicular herniations, partial or complete facetectomy is necessary with increased risk of postoperative spinal instability. We present the translaminar technique which allows a more direct and less destructive operative approach.   Methods: 30 patients using the translaminar fenestration were analysed by a postoperative follow-up of 6 weeks and one year. The mean-age was 57.2 years. For resection of the disc herniation, a small round or oval fenestration (6–8 mm) in the hemilamina, craniomedially to the facet joint, was performed. No patient received a partial or total facetectomy.   Results: The majority of affected discs were at the L4-L5 level (53%). An extruded fragment was found in 28 patients (93%). In 5 patients bleeding from epidural veins complicated the intra-operative course. In 50% the nerve root was visually exposed. 15 patients (50%) had an intervertebral discectomy additional to the fragment excision.  One patient was re-operated on after 10 days because of persisting radicular pain by using the same translaminar approach. 28 patients showed complete or nearly complete relief of radicular pain. Using this approach we have seen no major complication or clinical instability during a follow-up of at least one year.   Conclusions: The translaminar approach is an effective and minimally invasive technique in both canalicular and cranio-dorsolateral disc herniations. It gives an additional possibility to avoid partial removal of the facet joints, can be performed in all lumbar segments and preserves structures important for segmental spinal stability. The approach allows access to the extruded disc fragment and intervertebral disc space comparable to classical approaches and is a frequently used operative technique in our department.     

Lumbar spinal surgery for sciatica due to intervertebral disc disease in the elderly

This report reviews 36 patients aged 71 to 93 years who had lumbar spinal surgey for sciatica pain some with motor and or sensory disturbances and with no motor and sensory disturbances. Even though we found soft disc herniations, these patients should have a thorough circumferential decompression because of bony osteophytes and facet hypertrophy. Special attention is drawn to the removal of herniated discs associated with massive spondylotic degenerative changes.     

显微内镜辅助经皮微创椎间孑L入路腰椎椎体间融合术治疗腰椎退行性疾病

背景：传统开放椎间孔入路腰椎椎体间融合术（transforaminal lumbar interbody fusion,TLIF）由于剥离肌肉广泛及长时间牵拉,可导致部分患者持续性腰背痛。随着脊柱微创技术的发展,采用微创手段实施TLIF技术取得了良好的临床效果,但小切口经扩张通道系统的微创TLIF仍不可避免存在肌肉剥离,需探索更加微创的手术方式。 目的：探讨显微内镜辅助经皮微创TLIF治疗腰椎退行性疾病的近期疗效及安全性。 方法：2010年9月至2011年7月,72例腰椎退行性疾病患者接受了单节段TLIF手术,腰椎失稳症36例,腰椎管狭窄症25例,复发型腰椎间盘突出症11例。采用VIPER经皮椎弓根螺钉系统结合椎间盘镜下TLIF手术32例（微创组）,传统开放TLIF手术40例（开放组）,对两组患者近期临床疗效、并发症、术中射线暴露指标等进行比较。 结果：所有患者均获随访,随访时间6-15个月,平均9个月。两组手术时间无明显统计学差异（P〉0．05）,微创组术中出血量、伤口引流量、住院天数、术后应用镇痛药剂量均明显低于开放组（P〈0．01）;微创组术中射线暴露时间及剂量高于开放组（P〈0．01）;微创组术后疼痛（VAS评分）及ODI功能指数较开放组明显降低（P〈0．01）。微创组出现术中减压错误1例,置钉位置错误1例,导针穿透椎体前壁1例,硬膜撕裂1例;开放组出现术中硬膜撕裂3例,术后伤口浅表感染1例。两组患者均未出现神经损伤并发症。 结论：显微内镜辅助经皮微创TLIF较传统开放手术具有创伤小、出血少、恢复快、住院时间短等优点,具有良好的近期疗效,是治疗腰椎失稳症值得推荐的微创手术方式。     

巨大型腰椎椎间盘突出症的微创外科治疗

目的探讨巨大型腰椎椎间盘突出症微创手术策略。方法 2007年1月～2010年10月,对86例巨大型腰椎椎间盘突出症患者采用微创外科手术治疗。其中,椎间孔内镜椎间盘切除术(percutaneous endoscopic lumbar discectomy,PELD)28例,显微内镜椎间盘切除术(microendoscopic discectomy,MED)35例,微创经椎间孔腰椎椎间融合术(minimally invasive transforaminal lumbar interbody fusion,miTLIF)23例。术前与术后疼痛视觉模拟量表(visual analog scale,VAS)评分和改良Macnab标准评价临床疗效。结果 3种微创术式均能显著改善患肢放射性疼痛VAS评分。术后优良率都在85%以上。PELD术适于年轻人巨大型腰椎椎间盘突出症;MED术适于巨大型腰椎椎间盘突出症伴椎管狭窄;miTLIF术适于伴有腰椎退行性失稳或伴有马尾综合征或术后复发的巨大型腰椎椎间盘突出症。结论临床上应依据巨大型腰椎椎间盘突出症的不同类型,选择不同微创外科术式。     

发育性腰椎椎管狭窄合并腰椎间盘突出症

目的：探讨发育性腰椎椎管狭窄合并腰椎间盘突出症的病理特点、诊断和治疗。方法：报告４２例发育性腰椎椎管狭窄合并腰椎间盘突出症,计男２９例,女１３例,年龄１９～４４岁,平均３１．７岁。均采用经椎板间开窗行椎间盘切除术治疗。结果：随访２～７年,平均４．４年。２８例术前症状完全消失,１３例根性疼痛或间歇性跛行症状消失但仍遗有腰痛,１例症状体征消失６年后又出现间歇性跛行。结论：腰椎椎管狭窄和腰椎间盘突出系两种独立的疾病,发育性椎管狭窄往往只是致病的条件而非决定因素,当合并椎间盘突出时经开窗行单纯椎间盘切除术即可取得满意疗效行椎板切除术并无必要